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nr-softmodem: ensure RU is ready before L1 init in NFAPI PNF mode

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PROBLEM: In PNF mode, L1 is started from nfapi_pnf.c without verifying RU
readiness. The only gate is config_sync_var, but nr_softmodem.c sets this before
the RU  (e.g., FHI-72) is actually started. As a result, START_REQUEST can
trigger L1  init while the RU is not yet ready -- this is an issue when using
FHI72 with  DPDK BBDEV, where a pre-mature L1 init will crash the entire program
as DPDK BBDEV depends on xRAN's DPDK EAL.

FIX: Perform RU readiness checks before setting config_sync_var in NFAPI PNF mode.
This aligns PNF behavior with other modes and prevents L1 from starting before the
RU is operational.
This commit is contained in:
Xin Zhe Khooi
2026-01-19 08:59:46 +00:00
committed by Robert Schmidt
parent 102965a669
commit c978d1664f
1 changed files with 7 additions and 2 deletions
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9
executables/nr-softmodem.c
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@@ -637,8 +637,8 @@ int main( int argc, char **argv ) {
}
config_sync_var=0;
if (NFAPI_MODE != NFAPI_MODE_PNF)
config_sync_var = 0;
#ifdef E2_AGENT
@@ -662,6 +662,11 @@ int main( int argc, char **argv ) {
if (RC.nb_RU > 0)
start_NR_RU();
if (NFAPI_MODE == NFAPI_MODE_PNF) {
wait_RUs();
config_sync_var = 0;
}
#ifdef ENABLE_AERIAL
gNB_MAC_INST *nrmac = RC.nrmac[0];
nvIPC_Init(nrmac->nvipc_params_s);